Hi,
I asked the LoopMaster (www.loopmaster.com) about that and he quoted $100 to build me an Expression selector. I'd be able to plug the Exp pedal in one end and all the devices in the other – selecting which one I wanted to control.
But then I found this…
Check out the new Moog MP-201
It's a multi pedal that will let you control 4 expression destinations and midi as well… I'll be getting one for my rig for sure.
Most of the reviews are for analog synth control but there is a guy on YouTube with a massive pedal setup that he is controlling with this thing.
http://www.moogmusic.com/controllers/?section=product&product_id=21141
R.
